Unable to play within the browser so I downloaded it.
The concept is quite interesting I liked the mechanic of dying to switch on/off levers, nice job !
There's just something unclear about some tiles your drew, I was sure that bricks were walls, but in the end you could walk on them ? Got me confused, I still dunno if it's a bug or intended.
I believe that you should keep the tileset simple. Especially since it is a puzzle game, you want your player to know at a glance where it can move and interact. So keep your yellow tiles to say that it's a walkable area, if you want to make your levels prettier by using other walkable tiles, keep them the same color or tone so that you dont have a drastic change in aesthetics.
